CN105722238A - Wireless communication systems for medical data - Google Patents
Wireless communication systems for medical data Download PDFInfo
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- CN105722238A CN105722238A CN201610196237.0A CN201610196237A CN105722238A CN 105722238 A CN105722238 A CN 105722238A CN 201610196237 A CN201610196237 A CN 201610196237A CN 105722238 A CN105722238 A CN 105722238A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/56—Allocation or scheduling criteria for wireless resources based on priority criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W84/00—Network topologies
- H04W84/02—Hierarchically pre-organised networks, e.g. paging networks, cellular networks, WLAN [Wireless Local Area Network] or WLL [Wireless Local Loop]
- H04W84/10—Small scale networks; Flat hierarchical networks
- H04W84/12—WLAN [Wireless Local Area Networks]
Abstract
A communication method is disclosed, comprising: (i) wirelessly communicating in compliance with an IEEE 802.11 protocol (802.11 QoS) including quality of service extensions between a wireless access point (30) and a station (20) communicating patient data; and (ii) wirelessly communicating in compliance with the 802.11 QoS protocol between a wireless access point (20) and a station (34, 38) communicating content other than patient data. The 802.11 QoS protocol is configured to perform the wireless communicating (i) at a higher priority than the wireless communicating (ii) responsive to an indication (42, 52) that the wireless communicating (i) is communicating patient data, the higher priority providing at least one of faster communication and communication at a lower error rate as compared with the wireless communicating (ii).
Description
The application is the applying date is on 05 04th, 2009, application number is 200980116443.4, name is called the divisional application of application of " wireless communication system for medical data ".
Below relate to medical field, the communications field and association area.It is applied to medical monitoring, the medical alarm system etc. that use in hospital, emergency center, family, sanatorium, assisted care facility, emergency medical service haulage vehicle and system etc..
Medical facilities move towards wireless data link day by day, and its advantage includes, for instance, eliminate the wire, the minimizing probability of human error, the reduction cost etc. in setting up communication link that may interfere with healthcare givers's motion.Medical data link can include, for instance, the transmission of patient monitoring data, patient telemetry's technology, patient-alert signal transmission, be sent to be associated with patient get involved instrument control command etc..
Typically, hospital and other medical facilities have had the cordless communication network of the wireless digital networks form to meet IEEE802.11 set up.Typically, this IEEE802.11 network by hospital computer, server and other local digital device mutual connection, and with the network of more wide area and/or Internet Interconnection.IEEE802.11 standard is the universal standard used in arranging from the cordless communication network based on family to multiple within the scope of the WLAN for dominant company's entity.The communication system meeting IEEE802.11 is so that the multiple access/collision detection system that can dynamically set up multiple concurrent communications channels.The system meeting IEEE802.11 adopting service quality (QoS) protocol extension operates in the following manner.The device wanting to set up communication attempts being sent to transmission WAP (WAP).If wireless channel is not busy and WAP can provide new transmission channel immediately, then just set up this channel.If wireless channel is busy, then by observing channel, device, before attempting again sending, waits that random amount is to treat that it is idle, this is called keeps out of the way the stage.According to IEEE802.11 standard, this device calculates the cycle of the determined back off time of program by accessing classification based on device.After back off time, again carry out setting up another trial of communication link, and so forth until setting up link.
The IEEE802.11 agreement with QoS extension sets up 4 owner prioritys or access level: voice, video, " doing one's best " and background.Speech level aims at the link of voice-bearer communication and designs, and has the shortest random-backoff time.Which reflects voice communication and cannot tolerate the expection of long delay.Due to the delay that expectation video tolerance is slightly long, so video rank has the shortest secondary back off time.Rank of " doing one's best " is the conventional rank of the typical communication links of carrying ordinary numbers data.It is not frequently used background rank, but background rank aims at and provides the communication link that can tolerate considerably long delay, such as interim synchronous transmission of signal etc. to design.
The standard of the IEEE802.11 that the employing set up has QoS extension is called IEEE802.11e standard.The wireless digital networks of this IEEE802.11e of meeting is ubiquitous in hospital and other medical environment, but up to the present has yet to be extensively used to the communication of the such as patient data of patient monitoring data, patient telemetry's data etc..One reason is that the IEEE802.11e collision detection adopted indicates any communication to be likely to experience a large amount of delays with the unpredictable persistent period, and this is unacceptable for the transmission of vital data.For patient data transmission use meet IEEE802.11e communication network another difficulty is that this standard does not provide the mechanism for controlling or limit data transmission fault rate.Unpredictable and uncontrollable error rate is not suitable for the transmission of certain type patient data.
A kind of method for solving these difficulties is to provide the dedicated network meeting IEEE802.11e being specifically designed to patient data transmission.Being hospital due to result or other medical environment has two independences and parallel IEEE802.11e network, one is used for normal transmission, one for patient data transmission, adversely there is hardware in this way and repeat in institute.Even if additionally, the dedicated network meeting IEEE802.11e is likely to experience causes the overload situations for longer in the communication link that medical data transmits and uncontrolled delay.
The error rate that patient data transmits is controlled or limits by the Error Correction of Coding that can use patient data.Before being transmitted data are encoded, and based on the characteristic of Error Correction of Coding, decoding data and accuracy are detected at receiving terminal.But, the method introduces extra complexity into patient data transmission system.In order to be transmitted error detection, Error Correction of Coding also introduces data redundancy, which increases the total amount of data that must transmit.
The another way proposed during IEEE802.11e standard evolution includes the maximum error rate parameter for using in setting up the communication link with largest tolerable error rate.But, as it is assumed that the realization meeting the communication link of maximum error rate criterion will be problematic as, and add less desirable complexity to device, WAP etc., so not realizing this proposal in final IEEE802.11e standard.
Provided below is the equipment that is new and that improve and method that overcome the problems referred to above and other problems.
According to a disclosed aspect, disclosing a kind of communication system, it includes the communication network being configured to follow the IEEE802.11 agreement (802.11QoS) including service quality extension.This communication network includes at least one WAP and is configured to 802.11QoS agreement and at least one WAP and carries out multiple stations of radio communication, at least one station that these stations include transmitting patient data and transmit at least one station of content except patient data.802.11QoS protocol configuration is for transmitting specification parameters, it is transmit at least one station of patient data to provide (i) to communicate faster and at least one in the communication of (ii) lower error rate relative at least one station transmitting content except patient data.
According to the aspect disclosed in another, disclose a kind of communication means, including: (i) follows the IEEE802.11 agreement (802.11QoS) including service quality extension between WAP and the station transmitting patient data and carries out radio communication；And (ii) follows 802.11QoS agreement at WAP and transmission between the station of the content except patient data and carries out radio communication.It is transmitting the instruction of patient data in response to radio communication (i), perform radio communication (i) with the priority higher than radio communication (ii) by 802.11QoS protocol configuration.Compared with radio communication (ii), higher priority provides at least one in the communication of communication and lower error rate faster.
One advantage there are provided a kind of IEEE802.11 network with QoS extension, and it is applicable to patient data transmission.
Being further advantageous in that and provide a kind of IEEE802.11 network with QoS extension, it is applicable to have the medical data transmission reducing delay.
Being further advantageous in that and provide a kind of IEEE802.11 network with QoS extension, it transmits medical data transmission with the error rate reduced.
Reading and understanding of on the basis of following detailed description, those of ordinary skill in the art will be recognized by the further advantage of the present invention.
Fig. 1 diagrammatically illustrates 802.11 networks with QoS extension, its other content being configured to outside transmission patient data and patient data, wherein gives the priority that patient data is higher；
Fig. 2 depicts the expected delay of all kinds communication link and loss or error rate characteristic；
Fig. 3 diagrammatically illustrates the transmission specification including specifying medical data parameter；
Fig. 4 diagrammatically illustrates the transmission specification including specifying error rate class parameter.
With reference to Fig. 1, it is shown that patient 10 lies on bed 12, for instance, this is the typical case in hospital, sanatorium or other medical environment.Depend on the situation of patient, it is also contemplated that patient 10 be probably that walk about, that be arranged in wheelchair, be sitting in chair, etc..By various medical monitoring devices, patient is monitored, in the illustrated embodiment, it electrocardiogram (ECG) instrument including having ECG electrode 14 and the medical monitor 16 based on wrist, it can such as be configured to blood pressure, blood oxygen (SpO2) or other physiological parameter one or more be monitored.Using for receiving signal from sensor or watch-dog 14,16 and the electrode for performing signal processing on such signal alternatively includes in the illustrated embodiment as multi-functional patient monitor 20, or some or all of can be embodied as electronic device on the plate being set together with sensor 14,16 etc..
Medical data wireless communication link between patient monitor 20 or other station and WAP (WAP) 30 26 (being indicated by the double-headed arrow in Fig. 1) is sent to hospital network 24.Here description employs term " WAP (WAP) " and " station ", and the latter indicates use to follow the device that the wireless communication system with 802.11 agreements that service quality (QoS) extends communicates or attempt to communicate.These terms also aim to include wireless network node or wireless central controller.
Communication link 26 adopts and includes 802.11 agreements that service quality (QoS) extends, and is here generally denoted as 802.11-QoS agreement.In certain embodiments, 802.11-QoS agreement follows IEEE802.11e standard.In certain embodiments, 802.11-QoS agreement follows IEEE802.11EDCA standard, and wherein, initial " EDCA " representative " strengthens distribution channel to access ".802.11-QoS (namely agreement can also adopt the subset of standard IEEE 802.11e agreement, more unrealized features), or the superset (adding extra feature) of standard IEEE 802.11e agreement can be adopted, but or the amendment agreement adding some features and more unrealized standard features based on IEEE802.11e to standard can be adopted.Communication network including the WAP30 adopting IEEE802.11-QoS agreement is suitable also for providing other communication link, such as, the data link 32 between illustrated other digital device in WAP30 and computer 34 or carrying content except patient data or station and the voice communication link 36 between other station of WAP30 and portable voice communicator 38 or such as portable phone etc..It will be appreciated that communication link 26,32,36 is illustrative example, and typically, it then follows the communication system of 802.11-QoS agreement can support several, tens or more this communication link.Similarly, although illustrating an independent WAP30, but the communication system typically, meeting 802.11-QoS agreement can include being distributed in whole hospital or other medical environment provides 1 of desired coverage, 2,3,4,10,20 or more WAP for communication system.
With reference to Fig. 2, depict the expected delay of all kinds communication link and loss or error rate characteristic.Such as, owing to any a large amount of delays are considered as the delay in the voice communication link of participant or interruption, so internet protocol voice (VoIP) communication link of all communication links as illustrated 36 is preferably provided with short delay.But, VoIP communication link can tolerate relatively high error rate.Typically, owing to typically data stream contents being carried out buffer memory to provide the tolerance of antagonism flow interruption, so audio/video content can tolerate longer delay, and also at a relatively high error rate can be tolerated.
On the other hand, information technology (IT) link, namely the data link of the declarative data communication link 32 of such as Fig. 1 can tolerate considerably long delay, but error rate is very sensitive.Such as, typical data link sends such packet, and it encodes in the way of error of transmission is detected by receiving terminal by permission.Typically, by resending the whole packet mistake to make up in data packet transfer.Therefore, having the data link of high error rate and may result in most packet and by transmission primaries again or be likely to several times, this is less desirable.
Fig. 2 also show the typical patient for such as illustrative communication link 26 and monitors the data point of link, and this communication link 26 carries the patient data of such as patient monitoring data, patient telemetry's data etc..The communication link of carrying patient data more can tolerate delay than voice link to a certain extent, but more can't stand delay than audio/video or non-patient data link.Additionally, the exemplary link that some communication links (not shown in Fig. 2) carrying the non-daily patient data of such as condition data are likely to than describing with diagram in Fig. 2 more can't stand delay.The communication link of carrying patient data also has the low tolerance to mistake.Owing to patient data is likely to vital character, so being generally little to tolerance mistake.
Referring back to Fig. 1, in order to the ALPURCOM meeting 802.11-QoS agreement shown in FIG provides one or more communication link 26 of carrying patient data, 802.11-QoS agreement is adjusted, thus the communication performed in the data link of carrying patient data with the priority higher than the communication in the data link of the content carried except patient data.Higher priority provides compared with the data link with more low priority (i) and communicates faster and at least one in the communication of (ii) lower error rate.In a kind of suitable method, by 802.11-QoS protocol configuration for transmitting specification parameters, it has the communication link for transmitting patient data provides the first value of higher-priority and provides second (or the 3rd, etc.) value of relatively low priority for carrying the communication link of content outside patient data.
Such as, with reference to Fig. 3, it is shown that business norms (TSPEC) layout 40, it diagrammatically illustrates the TSPEC transmitted during the communication link initialization under 802.11EDCA agreement.Compared with conventional 802.11EDCA agreement, by including medical data parameter 42, the TSPEC layout shown in Fig. 3 is adjusted.Further conventional 802.11EDCA agreement being adjusted, be used for multiple feasible values of medical data parameter 42 with definition, whether the communication link that its instruction is initialised is for transmitting patient data.In TSPEC layout shown in figure 3, medical data parameter 42 is an eight bit byte in length；But, medical data parameter can be little as an independent bit only with two feasible values: a feasible value indicates the communication link being initialised for transmitting patient data, and the communication link that the instruction of another feasible value is being initialised is for transmitting the content except patient data.If medical data parameter is bigger, for instance, it is allowed to up to 4 possible feasible value 2 bits or allow up to 83 bits of possibles feasible value, or summarize permission up to 2nN bit of individual possible feasible value, then alternatively, medical data parameter 42 can have instruction be initialised, for transmitting other value of the communication link of dissimilar patient data.Such as, in a contemplated embodiments, medical data parameter 42 has at least 3 bits, and is such as following enumerated 6 feasible values of definition by 802.11-QoS protocol configuration:
0 communication link is not used in patient data；
1 communication link is used for daily patient monitoring data；
2 communication links are used for critical patient data；
3 communication links are for indicating the patient data of alarm；
The patient data that 4 communication links control for device；
5 communication links are for indicating the patient data of unit state.
These are illustrative examples, and can define different, more, less or other value in the other embodiments with 802.11-QoS agreement.Furthermore, it will be appreciated that medical data parameter 42 can be included the position except the position illustrated in the example in such as Fig. 3 in the tspec.
In the method described by reference Fig. 3, medical data parameter 42 is included in the TSPEC of communicating link data stream request access in the wireless network.In another contemplated embodiments, enclose medical data parameter to each protocol frame of carrying medical data, to indicate whether it is medical data, and if it is, alternatively, be which type.In another contemplated embodiments, medical data parameter is sent as the beacon of the wireless network support of instruction carrying medical data.
In each contemplated embodiments, once slave station receive access request, when determine which stream is serviced or refuses access time, if stream is identified as including patient data, WAP 30 just provides the priority treatment of the access to this stream.Meanwhile, subsequently, if when determining that sending stream when which flows is identified as including patient data, WAP is just to this stream priority treatment.Priority treatment can take to access the form of wireless medium to the higher probable probability of the stream including patient data.Such as, this can distribute relatively short random-backoff time by the communication link for carrying patient data and be that the communication link relatively long random-backoff time of distribution carrying the content except patient data realizes.In different modes, WAP can be identified as the transmission including the Frame of patient data with priority.
In the fig. 3 embodiment, use special medical data parameters 42 indicate communication link carrying or patient data will be carried, and the patient data of which kind of type or kind can also be indicated alternatively.This implementation must revise conventional 802.11e agreement to include and to explain the special medical data parameters 42 added.But, in some embodiments, it may be desirable to do not revise the layout of TSPEC.
Therefore, in certain embodiments, the existing parameter of TSPEC is defined as medical data parameter.Such as, in hospital or other medical environment, it is not frequently used video mode.Therefore, in certain embodiments, by video mode or access classification are newly defined as patient data pattern or classification, utilize access classification specification parameters as medical data parameter.In conventional 802.11e agreement, the priority order thereof accessing classification is:
AC_BK<AC_BE<AC_VI<AC_VO
Wherein, AC_BK represents background and accesses classification, and AC_BE represents " doing one's best " and accesses classification, and AC_VI represents video and accesses classification, and AC_VO represents audio access classification.Regular priority order reflects every kind as depicted in Figure 2 and accesses classification acceptable delay.The parameter of such as back off time is set based on priority order thereof so that the initialization for the communication link of audio access classification has the shortest back off time, and therefore has the high likelihood quickly granting access.
Video is being accessed in the embodiment that classification is newly defined as carrying patient data, is accessing classification AC_VI, i.e. video mode to illustrative communication link 26 distribution of the carrying patient data of Fig. 1, and therefore there is the highest priority except voice communication link.Alternatively, also priority order thereof is revised as following priority order thereof:
AC_BK<AC_BE<AC_VO<AC_VI
Make to the highest priority classified for all accesses of video mode AC_VI distribution that the communication link of carrying patient data is identified in these embodiments.Another kind for these embodiments expects that priority order thereof has AC_VO=AC_VI so that voice and video (i.e. patient data) has equal priority.
In IEEE802.11-EDCA, by changing: the time quantum that the channel that (i) station senses is idle before keeping out of the way or transmitting, it is expressed as AIFSN；(ii) for the competition window length of back off time, it is expressed as CWminAnd CWmax；And (iii) stands and obtain the persistent period that can send after channel, it is expressed as TXOP, realizes accessing every kind the differentiation of classification.Typically, these are provided as beacon and send by WAP 30, and receiving station is therefore based on their parameter of access classification setting at each station.
In one embodiment, use AC_VI pattern representatively carries the medical data parameter value of the communication link of patient data, the AIFSN being used for AC_VI and AC_VO is both configured to identical value (such as, be worth 2), and selects CWmaxMake AC_VOCWmax>AC_VICWmax.In another embodiment, the AIFSN being used for AC_VI and AC_VO is both configured to identical value (being such as worth 2), and selects CWminMake AC_VOCWmin>AC_VICWmin.In another embodiment, the AIFSN being used for AC_VI and AC_VO is both configured to identical value, selects CWmaxMake AC_VOCWmax>AC_VICWmax, and select CWminMake AC_VOCWmin>AC_VICWmin.It is also contemplated that other change of parameter value.
In some other embodiments, adjust 802.11-QoS agreement to perform the Wireless transceiver of patient data in the priority higher than the Wireless transceiver of the content except patient data by adjusting error rate.
With reference to Fig. 4, it is shown that business norms (TSPEC) layout 50, it diagrammatically illustrates the TSPEC transmitted under 802.11EDCA agreement.Compared with conventional 802.11EDCA agreement, by including error rate class parameter 52, the TSPEC layout shown in Fig. 4 is adjusted.Adjusting further conventional 802.11EDCA agreement, with the definition multiple feasible values for error rate class parameter 52, it makes amendment 802.11 QoS agreements, to provide of a relatively high or relatively low error rate.In TSPEC layout shown in the diagram, error rate class parameter 52 is 4 octets in length；But, error rate class parameter can be little as being only capable of the independent bits that error rate grade is allowed in definition 2 kinds, and summarizes, it is possible to define for have n-bit error rate class parameter up to 2nPlant and allow error rate grade.
In certain embodiments, the first error rate grade point is distributed at any station for transmitting patient data, and is station distribution second (or alternatively, the three, the 4th or other) the error rate grade point transmitting the content except patient data.The first error rate grade point for transmitting the communication link distribution of patient data preferably corresponds to error rate more less than second or other error rate grade point of distributing to the station transmitting the content except patient data, or is at least vision response test.
A kind of mode controlled for realizing error rate is for every kind of error rate tier definition maximum error rate.But, the method must revise 802.11-QoS agreement in a large number.Therefore, in some preferred embodiments, in order to the communication link for transmitting patient data provides more high priority with the form of lower mistake of statistics rate, and conventional 802.11EDCA agreement is adjusted not too much.
In a further mode of operation, by 802.11QoS protocol configuration it is: to remaining bandwidth tolerance limit 62 relatively higher compared with being assigned with those communication links that those communication links (namely transmitting the link of patient data) of the first error rate grade point distribute and be assigned with other error rate grade point (namely transmitting the link of content except patient data).The relative higher remaining bandwidth tolerance limit 62 of distribution enhances the probability of precise delivery, and it is anticipated that has statistically less error rate.Meanwhile, less mistake of statistics rate additionally aids and communicates faster for the communication link transmitting patient data.
In a further mode of operation, by 802.11QoS protocol configuration it is: to relatively less statistical data rate compared with being assigned with those communication links that those communication links (namely transmitting the link of patient data) of the first error rate grade point distribute and be assigned with other error rate grade point (namely transmitting the link of content except patient data).Such as, relatively less statistical data rate can be less peak-data rates 64, less average data rate 66 or the two.By reducing the statistical data rate of the link transmitting patient data, statistically increase the probability of precise delivery, and therefore statistically reduce error rate.
These are merely illustrative example, and these parameters of 802.11QoS agreement or the various combinations of other parameter can be adjusted, thus compared with those communication links (namely transmitting the link of content except patient data) being assigned with other error rate grade point, reducing the error rate of those communication links (namely transmitting the link of patient data) being assigned with the first error rate grade point.Additionally, illustrated error rate class parameter 52 is example, and error rate class parameter may be located at other place in transmission specification, or can be embedded in existing transmission specification.For example, it is possible to the video accessing classification specification parameters is accessed classification AC_VI be newly defined as the communication link identifying carrying patient data.So, for accessing, by AC_VI, those communication links that Classification and Identification is carrying patient data, the combination of the parameter of Median Time (mediumtime), remaining bandwidth tolerance limit, PHY data transfer rate or other parameter or 802.11QoS agreement is suitably adjusted, thus providing average less error rate for those links.
The present invention is described by reference to preferred embodiment.Once read and understanding of aforementioned detailed description, other people can modify and change.It is intended to invention is construed as including all such modifications and change, as long as they drop in the scope of claims or its equivalent.
Claims (14)
1. a communication system, including:
Being configured to adopt the communication network of 802.11-QoS agreement, wherein, described 802.11-QoS agreement is a kind of IEEE802.11 agreement including service quality extension, and described communication network includes:
At least one WAP (30)；And
It is configured to described 802.11-QoS agreement and at least one WAP described and carries out multiple stations (20,34,38) of radio communication, these stations include at least one station (34,38) of at least one station (20) and the transmission content except patient data transmitting patient data
Described 802.11-QoS protocol configuration is for transmitting specification parameters (42,52), it provides (i) to communicate faster relative at least one station that at least one station is described transmission patient data of described transmission content except patient data and at least one in the communication of (ii) lower error rate
Wherein, described specification parameters (42) is medical data parameter, and described 802.11-QoS agreement is whether described medical data parameter defines instruction communication link for transmitting multiple feasible values of patient data, and the plurality of feasible value includes:
For at least one feasible value of described medical data parameter (42), it indicates described communication link to be not used in transmission patient data；And
For the one or more extra feasible value of described medical data parameter, the described communication link of each instruction in the one or more extra feasible value is used for transmitting patient data,
The one or more extra feasible value includes:
For the second feasible value of described medical data parameter, it indicates described communication link to be used for transmitting daily patient data；And
For the 3rd feasible value of described medical data parameter, it indicates described communication link for transmitting the non-daily patient data than daily patient data with more high priority.
2. communication system as claimed in claim 1, wherein, described 802.11-QoS protocol configuration is: by distributing relatively long random-backoff time at least one station relatively short random-backoff time of distribution of described transmission patient data and at least one station for described transmission content except patient data, relative to the communication link initialization time at least one station (34,38) for described transmission content except patient data, reduce the communication link initialization time at least one station (20) for described transmission patient data.
3. communication system as claimed in claim 1, wherein, described 802.11-QoS protocol configuration is for transmitting specification parameters (42), it is relative at least one station (34 for described transmission content except patient data, 38) communication link initialization time decreased is for the communication link initialization time at least one station (20) of described transmission patient data, and wherein, described specification parameters is to have corresponding to (i) speech pattern (AC_VO), (ii) video mode (AC_VI), (iii) the access sorting parameter of the value of in best effort style (AC_BE) and (iv) background mode (AC_BK), and described 802.11-QoS protocol configuration for being assigned exclusively at least one station (20) of described transmission patient data by described video mode value (AC_VI), and described 802.11-QoS agreement is additionally configured to and described speech pattern, best effort style and background mode (AC_VO, AC_BE, AC_BK) each the comparing in reduces the channel access time delay for described video mode (AC_VI).
4. communication system as claimed in claim 1, wherein, described specification parameters is to have corresponding to (i) speech pattern (AC_VO), (ii) video mode (AC_VI), (iii) the access sorting parameter of the value of in best effort style (AC_BE) and (iv) background mode (AC_BK), described 802.11-QoS protocol configuration for distributing at least one station (20) of described transmission patient data by described video mode value (AC_VI), and described 802.11-QoS agreement is additionally configured to and described speech pattern, best effort style and background mode (AC_VO, AC_BE, AC_BK) each in is in a ratio of described video mode (AC_VI) provides (i) to communicate faster and at least one in the communicating of (ii) lower error rate.
5. communication system as claimed in claim 1, wherein, described 802.11-QoS protocol configuration is distribute Median Time relatively higher compared with those communication links (32,36) being assigned with described second error rate grade point to those communication links (26) being assigned with described first error rate grade point.
6. communication system as claimed in claim 1, wherein, described 802.11-QoS protocol configuration is distribute remaining bandwidth tolerance limit relatively higher compared with those communication links (32,36) being assigned with described second error rate grade point to those communication links (26) being assigned with described first error rate grade point.
7. communication system as claimed in claim 1, wherein, described 802.11-QoS protocol configuration is distribute relatively less PHY data rate compared with those communication links (32,36) being assigned with described second error rate grade point to those communication links (26) being assigned with described first error rate grade point.
8. a communication means, including:
I () is followed 802.11-QoS agreement between WAP (30) and the station (20) transmitting patient data and is carried out radio communication, wherein, described 802.11-QoS agreement is a kind of IEEE802.11 agreement including service quality extension；
(ii) follow described 802.11-QoS agreement at WAP (30) and transmission between the station (34,38) of the content except patient data and carry out radio communication；And
It is transmitting the instruction (42,52) of patient data in response to described radio communication (i), performing described radio communication (i) with the priority higher than described radio communication (ii) by described 802.11-QoS protocol configuration；Described higher priority provides at least one in the communication of communication and lower error rate faster compared with described radio communication (ii),
Wherein, described instruction (42) is medical data parameter, and described 802.11-QoS agreement is whether described medical data parameter defines instruction communication link for transmitting multiple feasible values of patient data, and the plurality of feasible value includes:
For at least one feasible value of described medical data parameter, it indicates described communication link to be not used in transmission patient data；And
For the one or more extra feasible value of described medical data parameter, the described communication link of each instruction in the one or more extra feasible value is used for transmitting patient data,
The one or more extra feasible value includes:
For the second feasible value of described medical data parameter, it indicates described communication link to be used for transmitting daily patient data；And
For the 3rd feasible value of described medical data parameter, it indicates described communication link for transmitting the non-daily patient data than daily patient data with more high priority.
9. communication means as claimed in claim 8, wherein, described radio communication (i) is being transmitted the described instruction (42,52) of patient data and is being included:
For having the access classification specification parameters of the described radio communication (i) of the value (AC_VI) corresponding to video.
10. communication means as claimed in claim 8, wherein, described 802.11-QoS protocol configuration is: uses relative higher Median Time compared with the described radio communication (ii) following described second error rate grade point, meet described first error rate grade point to perform described radio communication (i).
11. communication means as claimed in claim 8, wherein, by described 802.11-QoS protocol configuration it is: use relative higher remaining bandwidth compared with the described radio communication (ii) following described second error rate grade point, meet described first error rate grade point to perform described radio communication (i).
12. communication means as claimed in claim 8, wherein, by described 802.11-QoS protocol configuration it is: use relatively less PHY data transfer rate compared with the described radio communication (ii) following described second error rate grade point, meet described first error rate grade point to perform described radio communication (i).
13. a communication system, including:
Being configured to adopt the communication network of 802.11-QoS agreement, wherein, described 802.11-QoS agreement is a kind of IEEE802.11 agreement including service quality extension, and described communication network includes:
At least one WAP (30)；And
It is configured to described 802.11-QoS agreement and at least one WAP described and carries out multiple stations (20,34,38) of radio communication, these stations include at least one station (34,38) of at least one station (20) and the transmission content except patient data transmitting patient data
Described 802.11-QoS protocol configuration is for transmitting specification parameters (42,52), it provides (i) to communicate faster relative at least one station that at least one station is described transmission patient data of described transmission content except patient data and at least one in the communication of (ii) lower error rate
Wherein, described specification parameters is to have corresponding to (i) speech pattern (AC_VO), (ii) video mode (AC_VI), (iii) the access sorting parameter of the value of in best effort style (AC_BE) and (iv) background mode (AC_BK), described 802.11-QoS protocol configuration for distributing at least one station (20) of described transmission patient data by described video mode value (AC_VI), and described 802.11-QoS agreement is additionally configured to and described speech pattern, best effort style and background mode (AC_VO, AC_BE, AC_BK) each in is in a ratio of described video mode (AC_VI) provides (i) to communicate faster and at least one in the communicating of (ii) lower error rate.
14. a communication means, including:
I () is followed 802.11-QoS agreement between WAP (30) and the station (20) transmitting patient data and is carried out radio communication, wherein, described 802.11-QoS agreement is a kind of IEEE802.11 agreement including service quality extension；
(ii) follow described 802.11-QoS agreement at WAP (30) and transmission between the station (34,38) of the content except patient data and carry out radio communication；And
It is transmitting the instruction (42,52) of patient data in response to described radio communication (i), performing described radio communication (i) with the priority higher than described radio communication (ii) by described 802.11-QoS protocol configuration；Described higher priority provides at least one in the communication of communication and lower error rate faster compared with described radio communication (ii),
Wherein, described specification parameters is to have corresponding to (i) speech pattern (AC_VO), (ii) video mode (AC_VI), (iii) the access sorting parameter of the value of in best effort style (AC_BE) and (iv) background mode (AC_BK), by described 802.11-QoS protocol configuration for described video mode value (AC_VI) being distributed at least one station (20) of described transmission patient data, and also by described 802.11-QoS protocol configuration be and described speech pattern, best effort style and background mode (AC_VO, AC_BE, AC_BK) each in is in a ratio of described video mode (AC_VI) provides (i) to communicate faster and at least one in the communicating of (ii) lower error rate.
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| BRPI0908307A2 (en) | 2015-07-21 |
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